On Sun, Apr 29, 2018 at 7:24 PM, David Rowley
<david.row...@2ndquadrant.com> wrote:
> I think we should back patch and try to be consistent about the
> power(float8 1.0, 'NaN') and power('NaN', float8 0.0) cases. The
> archives don't show any complaints about power() with NaN until this
> one, so I imagine the number of people affected by this is small.I agree that this is not likely to affect a lot of people -- but the question isn't how many people will be affected but rather, of those that are, how many of them will be pleased rather than displeased by a change. I would argue that the results have to be unambiguously wrong in the back-branches to justify a change there, and this doesn't appear to meet that standard. I would guess that the number of people who use NaN is very small, but those people have probably adapted their application to the behavior they are getting currently. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
